KALINCOSmart Watch, Fitness Tracker with Heart Rate Monitor, Blood Pressure, Blood Oxygen Tracking, 1.4 Inch Touch Screen Smartwatch Fitness Watch for Women Men Compatible with iOS Android

Today, 1/4/2024, I believe I finally discovered why my sleep function would come and go overthe past year. Since my last update, nearly 6 months ago, I have had a couple of additional "No Data" experiences, when trying to determine how well I slept the previous night. I tried everything, even moved the watch to my other wrist and still the problem. I did clear the cache memory again for this app on my phone and was about to hit the reset button which would have erased all my exercise and sleep history, when it occurred to me.It was a simple problem which had nothing to do with the app or the watch itself. About 5 months ago the wrist band strap, which prevents the wrist band itself from flapping at the end, had broken. I replaced it with an older wrist band strap, from another watch, which stopped the flapping, but it was still loose up and down the band. I compensated by tightening the watch band 1 or 2 notch holes. This prevented the flapping but it apparently was too tight for the sensor to monitor my circulation sleep data at night. When I returned to the original notch hole position, sure enough.....sleep data this morning. Pretty sure this was the problem. I will use a tighter watch band strap. So I am changing my review to 5 stars today.......excellent value and information for a $30 starter smart watch. Just don't squeeze it too tight around your wrist.********************************************************************************Today, 6/18, the Sleep Function data from last night showed up this morning. I am not sure why. This is the first Sleep Data that got to my HerobandIII app since 5/14/23.The only thing I did last night was charge the watch up to a full 100%. I will now give it a 4* rating.********************************************************************I never thought I would need or want a smart watch. However, as I got older, I wanted something to keep track of my health functions, especially sleep, HR, BP, and exercise data, walking 3-5 times per week. So I found this $30 Kalinko, and figured why not give it a try. I knew it wouldn't be as accurate against standard monitors or other smart watches ,but at least is was mobile. So my expectations were very low to begin with. If it was junk, so be it, and I would spend a little more to get a watch that would give me a higher level of performanceI now have read many of the other reviews, especially the 1 or 2 stars to find out what others have been upset about compared to the one and only problem I have had so far.First, some facts I learned along the way and data to do a level set:1. I purchased my Kalinko P22 in late December, 20222. The basic HR, BP, and O2 measurements are not accurate (10-20% lower) because the accelerometerthe Chinese manufacturer uses is very basic in order to improve their profit margin for inexpensive retail price you pay.However, THIS IS NOT IMPORTANT, believe it or not. What is important are the measurement changes you see in the history log.The differences will give you a trend line against previous measurements. Don'tcompare it to other more accurate devices like BP monitors and cuffs or other instruments at thedoctor's office. Even those only give you single data points, and no trend lines good or bad.3. I believe the Steps function is not a measurement of your walking or physical steps with your feet. Thinkof it as an "Activity" monitor. It measures movement of your right or left wrist, even at night ,when you toss and turn in your sleep or get up to do normal functions that wake you up. I setdaily goal steps to 10,000 steps, which is just about right for my age and activity level.4. Don't expect and help from this Chinese manufacturer. No phone or email and expect poor englishif you do get a hold of someone. Most Chinese products have little help available as I found outwith their remote cameras and other products. The best you can do is download their UserGuide which is still substandard but better than nothing. Also, the included setup guide is so small (fontsize 1 or 2) you can't read it.. I had to copy it to my printer and increase the copy size by 50%.5. Don't buy this watch for yourself or someone that is not good with IT. If you want the full functionbluetooth hookup with the HerobandIII App on your smart phone, you must have a smart phoneand understand QR codes to perform the link. Otherwise you will just get the watch functions withno exercise or sleep data history which is kept on the phone6. Keep this watch on most of the time unless you are taking a shower, swimming, or in water. If youhave a regular watch, keep the Kalinko, on your other wrist, hopefully on the hand you use themost. You will get use to it. The rubber band is basic. Still have my original but you can getfancier ones if you want.7. The battery is good and lasts me normally around 7 days before I charge it up at 20%. The magneticcontacts are a little weird and it's easy to lose contact with the watch. Look for the dashedgreen lights that indicate "charging" and finally "charging complete" and 100% Don't move thewatch while charging. Normally takes about 2-3 hours for me with the USB plugged into one ofmy computer ports.8. The night light Torch function. An unexpected surprise at night or dark places is the singlewatch button turns on a very bright face light to find things and places without a flashlight orlight switch. It gives you about 5 seconds to locate anything within 5 feet.9. Don't care about other functions like weather or remote control for camera shots or messages or music.The Find Phone option might be helpful if you misplace it nearby. ItSo, why just 3 stars?1. It's a beginner smart watch for $30. It's ok, and I might just keep it until I find a moreaccurate or reliable one for $200 or more.2. I am an avid walker and hiker. The Exercise function has never failed me for this type ofexercise. I can go back to December 2022 history on the watch and get informationas to how much I have progressed on the same walks and hikes showing, HR, miles,and how they rate for my age on standard, weight loss, aerobic, and anaerobic functions.This gets a 5 * rating and worth the $30 all by itself.3. The Sleep Function is the most important function for me. It is the only function whichyou don not have to manually start and stop with the watch. It depends on the quality andaccuracy of the accelerometer on you wrist. It worked perfectly for 137 nights from Decemberuntil mid-May. It gave me good info on total sleep time, deep sleep, and times I woke upduring the night. Even a sleep quality score. Then nothing with a "No Data" message whenI woke up on the 138th morning. The User Guide says it is possible that individual sleepapps can lose data if you don't clear the cache memory on the HerobandIII app on the smartwatch. This had to be it, I thought. So I cleared the cache of the 7.8 mb, which should havecleared the problem. However, it didn't and I still have all the sleep history on a calendar goingback to December, but No Data for the past 2 weeks. The only other option would be to clear thedata or reset the watch which defeats the history I want to keep. Not sure what else I can do, and no responsefrom their "helpdesk" email address, or even their app developer. So a 1* for me on this watch on thisaspect.Final Summary.Unless the Sleep Function "No Data" can be restored, no more Kalinko $30 specials for me. I willonly use this watch for Exercise History, Health Trend, and the torch function for seeing in darkareas at night. If anyone else has solved the Sleep Function "No Data" problem. Please document.Thanks.

Good practical watch if you don’t t want to spend a lot on an Apple Watch

I have seen multiple reviews stating the watches tracking and logging of BP & heart rate is irregular and they cannot receive text messages. Here is my review;As for the BP tracking, if you are wearing the watch too loosely on your wrist you might notice that the reading is highly inaccurate, try making the watch tighter and see if that helps. I took my BP several times with the watch and I must say that it is very accurate. I also have a BP cuff that I use to see just how much of a difference between the two. Watch 113/70. BP Cuff 116/73. I have done this consistently and it is pretty spot on every single time. If I work out or if I leave to go to the doctors office of course my BP is going to fluctuate. As long as the numbers are not off by more than 20 digits I think it does exactly what I wanted it to do. The same goes for my heart rate, both my cuff and the watch differ by about 3-4 digits. I can live with that.As for the text messages. When I buy something that has certain bells and whistles I want all of them to work even if I find them useless. Honestly my phone is with me 24/7 but in the unlikely event it is not I will say it is helpful to see what someone is sending me. Initially I was not able to see my text messages and it bothered me, so I found the user manual online and instantly realized what the problem was. I already had notifications enabled on the HeroBandIII app so the next thing was to check the settings on my iPhone. My messages were set to display no preview. Per the manual, if there is no notification/display on the phone then the watch has nothing to show. Problem solved! Since then I am now receiving text messages. Now that I know I can, I will turn it off to preserve battery life. Note: I noticed the messages will only display the last 3. I am fine with that.Battery Life - Excellent! I purchased the watch prior to Christmas, charged, and received a battery low indicator 12 days later. Keep in mind the only notifications I have on the watch are phone and text at the moment. I purchased this watch mainly for the design and the features of monitoring my bp & heart rate.So far so good. For the price this watch is doing exactly what I bought it for. I have seen the same complaints for some of the watches that cost considerably more! It's not always about the cost, just read the instructions and you will get more out of it than you were expecting.Watch Faces - I love the variety, I like to change my face often so this is pretty cool.Sleep Tracking - I have never needed an app to tell me how long I was asleep. LOL. I lay down and get up and if I feel refreshed I got enough sleep. End of story.